Principles of Instrumental Analysis, 6th Edition
6th Edition
ISBN: 9788131525579
Author: Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher: Cenage Learning
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Question
Chapter 28, Problem 28.10QAP
Interpretation Introduction
(a)
Interpretation:
The order of the compounds containing the reversed-phase packing is to be stated.
Concept introduction:
The bonded phase has non polar nature in the reversed-phase packing. The non polar solute attracted towards the reverse phase packing and spent more time on the non polar bonded packing. Due to this the non-polar solute elute at the last. The polar solute will not attracted towards the bonded packing and also elute first from the column.
Interpretation Introduction
(b)
Interpretation:
The order of the compounds containing the reversed-phase packing is to be stated.
Concept introduction:
The bonded phase has non polar nature in the reversed-phase packing. The non polar solute attracted towards the reverse phase packing and spent more time on the non polar bonded packing. Due to this the non-polar solute elute at the last. The polar solute will not attracted towards the bonded packing and also elute first from the column.
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A
T
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4. (2 pts) Draw the structure of the major component of the Limonene isolated. Explain how
you confirmed the structure.
5. (2 pts) Draw the fragment corresponding to the base peak in the Mass spectrum of
Limonene.
6. (1 pts) Predict the 1H NMR spectral data of R-Limonene.
Proton NMR: 5.3 pon multiplet (H Ring
Part VI.
Ca H 10 O is the molecular formula of compound Tom and gives the
in the table below. Give a possible structure for compound Tom.
13C
Signals summarized
C1
C2
C3
C4
C5
C6
C7
13C shift (ppm)
23.5
27.0
33.0
35.8
127
162
205
DEPT-90
+
DEPT-135
+
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2. Using the following data to calculate the value of AvapH o of water at 298K. AvapH o of water at
373K is 40.7 kJ/mol; molar heat capacity of liquid water at constant pressure is 75.2J mol-1 K-1 and
molar heat capacity of water vapor at constant pressure is 33.6 J mol-1 K-1.
Chapter 28 Solutions
Principles of Instrumental Analysis, 6th Edition
Ch. 28 - Prob. 28.1QAPCh. 28 - Prob. 28.2QAPCh. 28 - Prob. 28.3QAPCh. 28 - How can the selectivity factor be manipulated in...Ch. 28 - Prob. 28.5QAPCh. 28 - Prob. 28.6QAPCh. 28 - Prob. 28.7QAPCh. 28 - Prob. 28.8QAPCh. 28 - Prob. 28.9QAPCh. 28 - Prob. 28.10QAP
Ch. 28 - Prob. 28.11QAPCh. 28 - Prob. 28.12QAPCh. 28 - Prob. 28.13QAPCh. 28 - Prob. 28.14QAPCh. 28 - Prob. 28.15QAPCh. 28 - Prob. 28.16QAPCh. 28 - Mass spectrometry is an extremely versatile...Ch. 28 - Prob. 28.18QAPCh. 28 - Prob. 28.19QAPCh. 28 - Two components in an HPLC separation have...Ch. 28 - Prob. 28.21QAPCh. 28 - Prob. 28.22QAPCh. 28 - Prob. 28.23QAP
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